Flexible SF-66-1000-I

Please insert directly into the duct
Free corner has a cylindrical bellow form
Cannot install after piping
Please use with pipes in advance
The free corners are curved 90 degrees, so please use for vertical standing boards
Cannot be u

Since it is a cold district, it was installed in the corner where the duct cover can not be attached. It was simply used for pipe protection as a measure against cold. Since the cold will increase in the future, we need to see the situation.